Original Nut for Sprocket and Chain Wheel Pionýr and ČZ M20 x 1,5

Nut M20 x 1,5, nut for sprocket and chain wheel Pionýr M20 x 1,5, nut height 6mm, also suitable for small swingarm models 355-455 for both sprocket and chain wheel, or for ČZ 477 sprocket